sinus durac matris

例句：

1. 1. The surgeon performed a delicate operation on the patient's sinus dura matris.
   外科医生对患者的鼻腔坚韧的膜进行了一次细致的手术。
2. 2.The patient was diagnosed with chronic rhinitis due to the damage to their nasal dura matris.
   由于鼻腔坚韧的膜受损，患者被诊断出患有慢性鼻炎。
3. 3. During the surgery, the surgeon had to remove the damaged nasal dura matris to prevent infection.
   在手术过程中，外科医生不得不切除受损的鼻腔坚韧的膜以防止感染。